Her name is Natalia.
A keyblader from a world called "The World Library"
She left her world by accident and has been wondering around ever since. Mostly because her sense of direction is really really bad. (like me)
Auron has been traveling with her since she won his freedom in the Colosseum and she's got a really big crush him.
Her keyblade is called 'Evangeline'

I've been in a odd funk for several weeks now, but thanks to this contest has sort of snapped me out of it. So thanks for making it. :3
Now as for Natalia. I was going to make her a Nobody, but I have enough trouble remembering Xion is apart of the Org. So Natalia was made to be just a keyblader.
Why Auron? Simple, most of the Org is spoken for, so are Riku and Sora. Also I like Auron and big fuzzy mean old man ways. XP
Why Evangeline? Because darn it I love that movie to death and the Tangled keyblade is still in development stages.